Window-ventilator



(No Model) F. GROSHANS.

WINDOW VENTILATOR.

No. 405.550. Patented June 18, 1 889.

- Fit 2:. WITNESSES: INVENTOR:

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BY AM ATTORNEY.

UNITED STATES PATENT OFFICE.

FERDINAND GROSHANS, OF BALTIMORE, MARYLAND.

WINDOW-VENTILATOR.

SPECIFICATION forming part of Letters Patent No. 405,550 dated June 18, 1889.

(No model.) a

To all whom it may concern.-

Be it known that I, FERDINAND GEosHANs, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in WVindow-Ventilators, of which the following is a specification.

This invention relates to a window-ventilator, and has for its object to provide a screen of thin fabric, which, when a sash is raised or lowered, will remain fixed to the part-ingstrips between the two sashes of a window, as hereinafter set forth.

The construction and combination whereby the desired result is accomplished will be described in connection with the accompanying drawings, in which Figure 1 is a view of a window from the inner side. Fig. 2 is a vertical section of same. Fig. 3 is a perspective view showing part of the screen-ventilat0r attached to the parting-strip.- Fig. 4 shows some details.

The window-frame has two sashesthe upper sash A and the lower sash B-and the vertical parting-strips 0, one at each side of the frame which separates the slideway of the two sashes.

My invention consists in attaching the screen-ventilator cl to the parting-strips C, so that either and both sashes may be moved up or down, and thereby, when the sash is open, afford ventilation through the screen without allowing insects or dust to enter.

The vertical edges of the thin fabric 01-- such as cheese-clothare each attached to a binding-strip e by being wrapped around the binding-strip and stitched or otherwise fastened. This binding-strip may besheet metal bent to an angle form, as shown in Fig. 4. The binding-strips e are then secured by screws or tacks f, or otherwise, to the parting-strip O. This construction keeps the fabric screen taut and in position across the frame. I

To keep the top of the screen from sagging down, I use a cross-wire g with a hook g at each end, which engages with the bindingstrip 6. The top edge of the fabric has a hem h, and the cross-wire g is passed through the hem. By this arrangement the fabric will remain in position and act as a screen when the upper sash is lowered. In the same way the device would serve as a screen if attached adjacent to the lower sash.

Any suitable fabric may be used for the screen, the binding-strips of which may be attached to either of the sash-strips.

Having described my invention, I claim The window ventilator and screen having in combination the vertical parting-strips O on the window-frame, two binding-strips 6, each secured to one of the said parting-strips, a cross-wire g, having its ends engaged with the binding-strips, and the thin fabric d, attached to the binding-strips and also to the said cross-wire, as set forth.

In testimony whereof I affix my signature in the presence of two witnesses.

FERDINAND GROSIIANS.

IVitnesses: A

JOHN E. MORRIS, JNo. T. MAnnoX. 

